Formation and composition of the clathrate phase in the H2O-H2 system at pressures to 1.8 kbarстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The transition of the hexagonal ice phase I-h to the clathrate phase sII has been found in the H2O-H-2 system at a pressure of about 1 kbar under conditions of an excess of gaseous hydrogen. The pressures of the I-h -> sII and sII -> I-h transitions have been determined over a temperature range from -36 to -18 degrees C, and the pressure dependence of the synthesis temperature of the clathrate phase from a liquid at pressures from 1.0 to 1.8 kbar has been constructed. The solubility of hydrogen in the I-h and sII phases and in liquid water has been measured. The concentration of hydrogen in the clathrate phase sII is about 1.2 wt % (10 mol %) near the boundary of the sII -> I-h transition, and it increases to 2 wt % (16 mol %) at a pressure of 1.8 kbar.